OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $30.00 Put

PFE280121P00030000

Latest saved OI7,236Oct 23, 2026
Last change-66vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $30.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7,3023,6510 2026-10-02: 7,284 OI2026-10-05: 7,285 OI2026-10-06: 7,285 OI2026-10-07: 7,284 OI2026-10-08: 7,284 OI2026-10-09: 7,285 OI2026-10-13: 7,287 OI2026-10-14: 7,287 OI2026-10-15: 7,277 OI2026-10-16: 7,277 OI2026-10-21: 7,302 OI2026-10-23: 7,236 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PFE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7,236-66
Oct 21, 20267,302+25
Oct 16, 20267,2770
Oct 15, 20267,277-10
Oct 14, 20267,2870
Oct 13, 20267,287+2
Oct 09, 20267,285+1
Oct 08, 20267,2840
Oct 07, 20267,284-1
Oct 06, 20267,2850
Oct 05, 20267,285+1
Oct 02, 20267,284No prior observation